Wait until you post a long thread. I was posting a 'disertation' on another thread, and when my cursor got past the end of the Quick Reply box, the cursor, and all my text started jumping up and down. It looks like the cursor is jumping back to the first blank character it can find. What's frustrating is if you want to go back to fix some spelling or punctuation error, the only way you can get back to that point is by using the arrow keys to move the cursor back to the word you want to correct.